28982500 has 30 divisors (see below), whose sum is σ = 63384398. Its totient is φ = 11592000.

The previous prime is 28982497. The next prime is 28982519. The reversal of 28982500 is 528982.

It can be written as a sum of positive squares in 5 ways, for example, as 4301476 + 24681024 = 2074^2 + 4968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3297 + ... + 8296.

Almost surely, 2^28982500 is an apocalyptic number.

28982500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28982500 is an abundant number, since it is smaller than the sum of its proper divisors (34401898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28982500 is a wasteful number, since it uses less digits than its factorization.

28982500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617 (or 11600 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 28982500 is about 5383.5397277256. The cubic root of 28982500 is about 307.1698706571.

The spelling of 28982500 in words is "twenty-eight million, nine hundred eighty-two thousand, five hundred".